Service is running. Available endpoints:
| Method | Path | Description |
|---|---|---|
| GET | / | This page |
| POST | /webhook/{channel} | Receive a webhook event |
| GET | /webhook/whatsapp | WhatsApp verification handshake |
| GET | /api/calls | List stored calls (Bearer token required) |
| GET | /api/calls/{id} | Call details (Bearer token required) |
| GET | /docs | Interactive API docs (Swagger UI) |